ci starts bisection 2023-03-31 08:03:26.77972629 +0000 UTC m=+157147.226074301 bisecting fixing commit since eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 building syzkaller on 9da37ae85383e0dda5fc114ec808909f72fe038d ensuring issue is reproducible on original commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5d9746563aa852eaa4eb793778ece211a27a3a13909631859810095374ab1ba5 run #0: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #1: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #2: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #3: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #4: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #5: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #6: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #7: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #8: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #9: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #10: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #11: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #12: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #13: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #14: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #15: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #16: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #17: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #18: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #19: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx testing current HEAD 62bad54b26db8bc98e28749cd76b2d890edb4258 testing commit 62bad54b26db8bc98e28749cd76b2d890edb4258 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e511053ab5ac199f5767fb64decaed2f49fa112b277e59f92e9a3d5edb8f42bb run #0: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #1: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #2: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #3: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #4: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #5: crashed: BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:LINE/ccid3_first_li() run #6: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #7: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #8: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx run #9: crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx revisions tested: 2, total time: 55m23.463517648s (build: 36m30.702306214s, test: 8m3.717168682s) the crash still happens on HEAD commit msg: Merge tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping crash: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1537/dccp_feat_activate_values() BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() CPU: 1 PID: 6167 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: dump_stack_lvl+0x167/0x220 tfrc_rx_hist_sample_rtt+0x2d6/0x3e0 ccid3_hc_rx_packet_recv+0x56f/0xe60 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __sk_receive_skb+0x36e/0x880 ip_protocol_deliver_rcu+0x62/0xa20 ip_local_deliver_finish+0x21d/0x460 NF_HOOK+0x255/0x300 NF_HOOK+0x255/0x300 __netif_receive_skb+0x1b7/0x4f0 process_backlog+0x2dd/0x640 __napi_poll+0x94/0x380 net_rx_action+0x65c/0xd60 __do_softirq+0x2ab/0x908 __irq_exit_rcu+0x159/0x240 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x95/0xb0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 1e ed 1b f8 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 63 47 ad f7 65 8b 05 04 d5 5c 76 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc900055a7080 EFLAGS: 00000206 RAX: 8ec666eb599b0100 RBX: 1ffff92000ab4e14 RCX: ffffffff90832003 RDX: dffffc0000000000 RSI: ffffffff89ea6a40 RDI: 0000000000000001 RBP: ffffc900055a7120 R08: dffffc0000000000 R09: fffffbfff1a7d2a6 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000ab4e10 R14: ffffc900055a70a0 R15: 0000000000000246 debug_check_no_obj_freed+0x5ca/0x650 free_unref_page_prepare+0x2f5/0xe70 free_unref_page+0x37/0x3f0 __unfreeze_partials+0x1b1/0x1f0 put_cpu_partial+0x116/0x180 qlist_free_all+0x22/0x60 kasan_quarantine_reduce+0x14b/0x160 __kasan_slab_alloc+0x23/0x70 slab_post_alloc_hook+0x68/0x3a0 kmem_cache_alloc_node+0x157/0x350 __alloc_skb+0x11e/0x3b0 alloc_skb_with_frags+0x82/0x640 sock_alloc_send_pskb+0x7f3/0x8f0 dccp_sendmsg+0x2b4/0x870 ____sys_sendmsg+0x4aa/0x780 __sys_sendmmsg+0x336/0x650 __x64_sys_sendmmsg+0x9b/0xb0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc8dce8c189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8ddcaa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fc8dcfabf80 RCX: 00007fc8dce8c189 RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 RBP: 00007fc8dcee7b01 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2cfa98ff R14: 00007fc8ddcaa300 R15: 0000000000022000 BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li() CPU: 1 PID: 6208 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: dump_stack_lvl+0x167/0x220 ccid3_first_li+0x27c/0x340 tfrc_lh_interval_add+0x4e7/0x6f0 tfrc_rx_handle_loss+0x673/0x1720 ccid3_hc_rx_packet_recv+0x28a/0xe60 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __sk_receive_skb+0x36e/0x880 ip_protocol_deliver_rcu+0x62/0xa20 ip_local_deliver_finish+0x21d/0x460 NF_HOOK+0x255/0x300 NF_HOOK+0x255/0x300 __netif_receive_skb+0x1b7/0x4f0 process_backlog+0x2dd/0x640 __napi_poll+0x94/0x380 net_rx_action+0x65c/0xd60 __do_softirq+0x2ab/0x908 do_softirq+0x166/0x250 __local_bh_enable_ip+0x1b5/0x1f0 ip_finish_output2+0x998/0xd80 __ip_queue_xmit+0xf82/0x1be0 dccp_transmit_skb+0xbf9/0x1410 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __release_sock+0x17f/0x410 release_sock+0x55/0x180 dccp_sendmsg+0x36a/0x870 ____sys_sendmsg+0x4aa/0x780 __sys_sendmmsg+0x336/0x650 __x64_sys_sendmmsg+0x9b/0xb0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc8dce8c189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8ddcaa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fc8dcfabf80 RCX: 00007fc8dce8c189 RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 RBP: 00007fc8dcee7b01 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2cfa98ff R14: 00007fc8ddcaa300 R15: 0000000000022000 BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() CPU: 1 PID: 6282 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: dump_stack_lvl+0x167/0x220 tfrc_rx_hist_sample_rtt+0x2d6/0x3e0 ccid3_hc_rx_packet_recv+0x56f/0xe60 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __sk_receive_skb+0x36e/0x880 ip_protocol_deliver_rcu+0x62/0xa20 ip_local_deliver_finish+0x21d/0x460 NF_HOOK+0x255/0x300 NF_HOOK+0x255/0x300 __netif_receive_skb+0x1b7/0x4f0 process_backlog+0x2dd/0x640 __napi_poll+0x94/0x380 net_rx_action+0x65c/0xd60 __do_softirq+0x2ab/0x908 __irq_exit_rcu+0x159/0x240 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x95/0xb0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x1874/0x2180 Code: 89 e7 e8 2f 09 00 00 84 c0 0f 84 6f 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 20 0f b6 04 01 84 c0 0f 85 69 06 00 00 <48> 8b 6c 24 08 8b 84 24 8c 00 00 00 39 45 00 0f 85 14 01 00 00 48 RSP: 0018:ffffc9000625ef30 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc9000625f050 RCX: 1ffff92000c4be00 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000625f060 RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffc9000625f050 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc9000625f000 R13: ffffffff8e2232dc R14: ffffffff899d1661 R15: ffffffff8e2232e0 arch_stack_walk+0x111/0x140 stack_trace_save+0x117/0x1c0 kasan_set_track+0x4f/0x70 __kasan_slab_alloc+0x66/0x70 slab_post_alloc_hook+0x68/0x3a0 kmem_cache_alloc_node+0x157/0x350 __alloc_skb+0x11e/0x3b0 alloc_skb_with_frags+0x82/0x640 sock_alloc_send_pskb+0x7f3/0x8f0 dccp_sendmsg+0x2b4/0x870 ____sys_sendmsg+0x4aa/0x780 __sys_sendmmsg+0x336/0x650 __x64_sys_sendmmsg+0x9b/0xb0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc8dce8c189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8ddcaa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fc8dcfabf80 RCX: 00007fc8dce8c189 RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 RBP: 00007fc8dcee7b01 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2cfa98ff R14: 00007fc8ddcaa300 R15: 0000000000022000 BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt() CPU: 1 PID: 6413 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: dump_stack_lvl+0x167/0x220 tfrc_rx_hist_sample_rtt+0x2d6/0x3e0 ccid3_hc_rx_packet_recv+0x56f/0xe60 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __sk_receive_skb+0x36e/0x880 ip_protocol_deliver_rcu+0x62/0xa20 ip_local_deliver_finish+0x21d/0x460 NF_HOOK+0x255/0x300 NF_HOOK+0x255/0x300 __netif_receive_skb+0x1b7/0x4f0 process_backlog+0x2dd/0x640 __napi_poll+0x94/0x380 net_rx_action+0x65c/0xd60 __do_softirq+0x2ab/0x908 __irq_exit_rcu+0x159/0x240 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x95/0xb0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:seqcount_lockdep_reader_access+0x184/0x1d0 Code: 24 20 42 80 3c 3b 00 74 08 4c 89 e7 e8 a5 b4 54 00 f6 44 24 21 02 75 47 41 f7 c6 00 02 00 00 74 01 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 66 43 c7 44 2f 09 00 00 43 c6 44 2f 0b 00 RSP: 0018:ffffc9000a627620 EFLAGS: 00000206 RAX: f26351cc316b1900 RBX: 1ffff920014c4ec8 RCX: ffffffff8160551a RDX: dffffc0000000000 RSI: ffffffff89ea6a40 RDI: ffffffff8a39a180 RBP: ffffc9000a6276d8 R08: dffffc0000000000 R09: fffffbfff1e07450 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc9000a627640 R13: 1ffff920014c4ec4 R14: 0000000000000246 R15: dffffc0000000000 ktime_get_with_offset+0x69/0x250 ccid3_hc_tx_send_packet+0x50/0x870 dccp_write_xmit+0xc5/0x180 dccp_sendmsg+0x546/0x870 ____sys_sendmsg+0x4aa/0x780 __sys_sendmmsg+0x336/0x650 __x64_sys_sendmmsg+0x9b/0xb0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc8dce8c189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8ddcaa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fc8dcfabf80 RCX: 00007fc8dce8c189 RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 RBP: 00007fc8dcee7b01 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2cfa98ff R14: 00007fc8ddcaa300 R15: 0000000000022000 BUG: stored value of X_recv is zero at net/dccp/ccids/ccid3.c:691/ccid3_first_li() CPU: 1 PID: 6525 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: dump_stack_lvl+0x167/0x220 ccid3_first_li+0x27c/0x340 tfrc_lh_interval_add+0x4e7/0x6f0 tfrc_rx_handle_loss+0x673/0x1720 ccid3_hc_rx_packet_recv+0x28a/0xe60 dccp_rcv_established+0x153/0x250 dccp_v4_do_rcv+0xc6/0x190 __sk_receive_skb+0x36e/0x880 ip_protocol_deliver_rcu+0x62/0xa20 ip_local_deliver_finish+0x21d/0x460 NF_HOOK+0x255/0x300 NF_HOOK+0x255/0x300 __netif_receive_skb+0x1b7/0x4f0 process_backlog+0x2dd/0x640 __napi_poll+0x94/0x380 net_rx_action+0x65c/0xd60 __do_softirq+0x2ab/0x908 do_softirq+0x166/0x250 __local_bh_enable_ip+0x1b5/0x1f0 ip_finish_output2+0x998/0xd80 __ip_queue_xmit+0xf82/0x1be0 dccp_transmit_skb+0xbf9/0x1410 dccp_rcv_state_process+0x2ee/0x6b0 dccp_v4_do_rcv+0xd1/0x190 __release_sock+0x17f/0x410 release_sock+0x55/0x180 dccp_sendmsg+0x36a/0x870 ____sys_sendmsg+0x4aa/0x780 __sys_sendmmsg+0x336/0x650 __x64_sys_sendmmsg+0x9b/0xb0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc8dce8c189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8ddcaa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fc8dcfabf80 RCX: 00007fc8dce8c189 RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006 RBP: 00007fc8dcee7b01 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2cfa98ff R14: 00007fc8ddcaa300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 9c pushfq 1: 8f 44 24 20 popq 0x20(%rsp) 5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 1e ed 1b f8 callq 0xf81bed32 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 4e jne 0x69 1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 63 47 ad f7 callq 0xf7ad4792 <-- trapping instruction 2f: 65 8b 05 04 d5 5c 76 mov %gs:0x765cd504(%rip),%eax # 0x765cd53a 36: 85 c0 test %eax,%eax 38: 74 3f je 0x79 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss